Gas-engine.



L. G. VANDERLIP.

v GAS ENGINE. APPLICATION FILED min, 1908.

"witnesses I Inventor I HIYQIMIS Patentd Ma 3, 1910.

L. G. VANDBRLIP.

GAS ENGINE. v APPLICATION FILED MAY 21, 1908 957,01 '7. Patented May 3, 1910.

a sums-sum 2.

mimranm 2% ga e -x A l VM L.-c. VANDERLIPQ GAS ENGINE.

' APPLICATION FILED MAY'2l, 1908.

3 SHEETS-SHEET 3 a l, 4. W .2

Pa tented May 3, 1910.

. had to-the accompanyin UNITED STATES PATENTOFFICE.

LOUIS ovanmmmr, or mama m", imJIANA.

- GAS-ENGINE.

specifleation'of Letters Patent.

. Patented May 3, 19:10.

Application-filed m 21, lacs. Serial 1m. 434.905.

.To all whom it may concern:

. Be it known that I, LoUIs'C. Victorians a citizen of the United States, resrdmg at Elkhart, county .of Elkhar-t, State of Indiana, have invented a certain new and useful "Improvement'inGas-En 'nes', and declare the following to be a ful clear, and exact 7 description of the same, such. as will enableoth ers skilled in the art to which pertains to'makeand use the same, reference being drawings, which form apart of thls speci cation. v 4

My invention relates to gas engines, and especially to that kind of engine which works upon the two cycle principle, or mode h of operation.

In the accompanying .drawings:-Figu.=ne 1., is a vertical central section. Fi g; 2, 1s a sectionon the has aa, Fig. l, drawn to 'a' Fig. 3, is a detailsection upon larger scale.

' the line b?), Fig. 1 drawn to a larger scale.-

Fig. i is a View similar to Fig. l, showing a modification. y I

15 is the crank case. r 2 is a cylinder 11 on the crankcase :3 indicates coo 111g ribs upon the 'c yiin-y der 2.

4 isa' cover or end upon the cylinder 2. f. t 2 represents an aperture through the maliof the. cyiinder 2 at the upper end thereof.

The aperture 2 may communicatewith a source of supply of explosive. mixture.

. 5. indicates an which may-be formed throughthie maer 4:.

6 is a cylindrical projection concentric with the cylinder}, andentemiing inwardly from the cover 4-.-

7, '1, represents. water'ju'icket in the cylins drical projectiont.

At .8, a erture isiormed, which may be secured t e. spanking lug. I 9, 9, indicate sn'annu-ar chamber termed around the cylinder 2 toward the lower end thereof. A w

-10. is an opening from the annular chambera 11'. is an annular chamber formed around the cylinder 2 just'below the annular chamber 9,-and 12is an inlet passage to the annular'chamber 11. There is a wall common .to said-two annularchambers.

1 3, 13. indicatfcports, or passages, formed through the wall of the cylinder 2, and corn- I'nunicating with the annularchamber-11.

1i, Figs. 1 and 2, indicate apertures formed through the wall of the cylinder 2,

nets of combustion; and fi "l7 with an explosive mixture.

I and the annular -charnand fonnJ-a tightyjoint with the walls of the cylinderafi. I J

1 and 2," arle torin'edthirough the walls of the cylindhblfland adapted to register with-the aperturesor p a-. 14 when the iston .16 "is-.at; the lower end oi its "retro e.

19 are 01% focmed 'thrrou-gh; themail of iegrai oif therings 6 around its lower-end, "which fit c1086 7 the cyliu or 17 toward-thcfupper end thereof, and so located that they come just below the lower .end of the projection 6 when thepiston 16 is at rthse'loiwer end of it'stravel.

It will he noticed tfiatithe space betweenthe projection .6 and the cylinder 2 is filled by a portion of-the spi'storiulti, and an aperture 5 ma Ibe at the upper end of the cylin. er 2 'te;. 'permit the air to pass in and out, and thus prevmt .a vacuum being fornied atv the. upper and of the cylinder 2,

or compression taking place there.

' The opera f the above described device is as follows-z- -Thecharge is ignited at the upper end of the stroke of the piston within .the cylinder 17, and presses the piston 16' downward to constitute the ,work in stroke. .During "the downward motion e the. piston 16: a'charge is somewhat compressed in the crank chamber 15. At ci -near.

the lower end of the working stroke the ports 18 commence to r ister with the ports 14, and the products 0 combustion escape through said ports into the'annul-ar chamher 9, and pass out the exhaust passage 10. Soon after the ports 18 commence toregister with the orts 14, .thegports 1:9 .comebelow the cylin rical projection 6, and the explosive mixture com ressed in the crank chamber 15 passes t rough passages 20, and through the'ports l9, dis lacing the prodlling -the cylmder Upon the return of the piston 16 this charge is compressed, and the cycle is ago in repeated. At the upper end of the stroke of the piston 16,

its lower edge uncovers the ports 13, and the outer air or=air and gas or vapor, as the case may be, rushes in through the passage 12, and the ports 13 to supply the partial vacumn in the crank-case 0c asloned by the rising of the piston 16, as ell understood in the art as applied to the so-called three port two cycle engines. At the same time the rings 16 and adjacent parts of the pis- 10 ton pass over the aperture 2, admitting air or air and gas or vapor, as the case may be, through the passage into the crank-case, and obstructing the passage of air {from the port 5. It will be understood that either the ports 13 or aperture 2 may be used alone, in which case only an explosive mixture would-be admitted, or both may be-used together and explosive mixture taken in through both, or both may be used together, air. only being taken through one; which case the relative time of opening would be properly arranged to secure the proper proportions o f fuel andair in the mixture, as will be well understood by those conversant with-the art. Upon the'wall of the cylinder 17-, and projecting outward therefrom, I formri'bs 21, which impart heat fromsaid cylinder to the gases passing .by them, and assist to keep the iston 17 cool. The heat is-also dissipatedv rom said cylinder by, ra-

diation to. the adjacent walls of the cylinder =2, and is dissipated from the latter by the ribs or. pins The projection. 6 contacts with and coolsi the inner. wall of the cylinder 17. The fresh mixture "is admitted at dischargedfromthe otheipend of, said cylin der, and both the inlet and exhaust ports extend for the greaten-part of a complete case 15 completely duringilthe' very briefintervalthat they-flare open. v e pressure in the cylinderiligjis r'educd to atmospheric,

ability of explosions in the avoided." The gases admitted gainstthe' cylinder 17-, and help onci-ther may be usednwithout "er Where only thepdrts 13 are es ZO-inay be entirely-within communicatelwith the I Port or aperture-2. In-Fig; ithe modified orm of the cylinder 17 isshown, in which the passa es 20 com- 1 municate with the fports 19am 0 not open to the peripheryo 'saidcylinder;

one end of the cylinder '17,]and the exhaust is circle, so that they maybe made compara-- any ime the inlet 'ports open,

ssage 2 1 strikedirectly and imj -;same'. Both the ports 2 and 13-v asmuch as itwill not beri-ngthese passages to the surtop, of the', piston, in order to- What I claim is cylinder having a compression chamber therein, a second cylinder ada ted to reciprocate in the first named c lnder and to cylinders closing one end ofthe same, the

eating with said compression chamber and adapted to be uncovered by'said rojection at one end of the movement of the last named cylinder to permit the charge to flow therethrough from said compre ion chamin the remainder of the stroke of said cyli'n er, for the purpose described, and an exhaust port in thesecond cylinder adapted to register with an exhaust outlet at the time the port is uncovered by said projection.

cylinder having a compression chamber, a second cylinder adapted to reciprocate in the first named cylinder and to com ressg'as in said compression chamber," an' provided withan internal combustionchamber formed therein, said second cylinder being provided with 'coolin ribs extending from its outer wall and within the firstnamed-cylinder, a :space being left between said cylinders, closed by a partition on said second cylinder at one end and open. at the other end tosaid compression'chamber, anlintak port 19 in said second cylinder opening into the combustion chamber and to -the space'between the cy1- inders, means for controlling-said port, said port being so located as to admit gas to the cor'nbustion chamber from said compression -chamber. through said space.

.3. In a gas. engine, the-combination of a cylinder, a piston adapted to reciprocate in chamber, with said combustion chamber, an

inder being 'rovide' wit an induction "aperture, sai

permit the chambfr.

other end being otherwise closed, a port in the second cylinderpermanentlycommuni- 2. In a gas engine, the combination of a toward the end of the stroke during whichcompression'takes place in the compression opening atthe periphery of said piston com-w municatin'g w1th said assa eway, said cyl-;

1. In a gas engine, the combination of'a her and to be covered by saidpro ection, dursaid cylinderand rovided-wit-h an internal V combustion "chain 1', a rportgythrough the4110 aperture and, said opening from said passagewaybeing so vlocated thatthey shall registerw'ith each other toward the end of the stroke in which a charge is .to I

be drawninto the compression chamber to charge to entersaid compression ,l i i 130 7e compress the charge 1n sald COIDPI'BSSIOD' chamber, a pro ectlon from the first named cylinder fitting within the other of saidv cylinder havinga cra case, a piston register w chamber adapted to pass beyond said projecsaid compresslon chamber, to permit a ing one end of said. chamber,

said chamber adapted'to pass beyon said piston during which it com res'ses a 4.1m a gas engine, the combination of a inder being rovided with a port adapted to 1th the side opening of said pasw, adapted to compress a charge 1n said crank sage toward the end of the stroke following case, said iston having a combustion charm the working stroke of the piston. ber formed therein, a projection from said 6. Ina gas engine, the combination of a cylinder fitting into said chambsrandclos-l cylinder havin' a compression chamber ing one en thereof, the other end being otherwise closed, aport in the wall of sa'i rocate-1n the first named cy inder and ,to compress a charge in said compression chamher, a rojection from the first named cyl inder tting within the other of said cylinders, a port in the wall of the inner cylinder, 5 permanently communicating with said-compression chamber and adapted to pass beyond said'proj ection at one end ofthe movement of said cylinder to permit the charge 'to flow therethroug'h from said compression 50 chamber and to be covered by said projection during the remainder of'the stroke of saidcylinder, af'second port-in said inner cylinder toward the op osite'end thereof -to that in whichis the rst named port, said 55 last named port beingadapted to be covered by the wall of the'outer c linder and to be uncovered thereby 'towar the end of the working stroke, for the fpurpose described".

In testimony whereo I sign this specifi cation in the presence of two witnesses:

Louis 0; vasnnnmr.

tion toward the en ofthe stroke during which said piston compresses a charge in charge to pass into said combustion chamber, said piston beingprovided with a pas-' sageway communicating with said portend with said compression chamber.

5. In a gas engine, the combination of a cylinder having a'flscrank case, a piston adapted to compress ajfcharge in said crank case, said piston having a combustion chamber formed therein,a-projection from said cylinder fitting into'said chamber and closthe other end being otherwise-closed, a port in the wall of d said projectiontoward the end of the stroke ofcharge insaid compression chain r, said piston belng provided with a passage commnnicatmg wlth said port and with said compression chamber, said passage opening Witnesses: at the outer side of said piston toward the MYli'rnn L. MUDGE,

end remote from said crank case, said cyl- F. W. RAHN.

therein, a secon cylinder ada ted to recips 40 

